-moelyea



(N0 Modl.) 2 Sheets-Sheet 1.

J. L.'M0ELYEA.

ADDING MACHINE Patented Aug. 2'7, 1895.

(No Model.) 2 Sheets-Sheet 2.

J. L. MOELYEA.

ADDING MACHINE.

No. 545,089. Patented Aug. 27,1895.

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UNITED STATES PATENT OFFICE.

JAMES L. MCELYEA, OF NONA, TEXAS, ASSIGNOR OF ONE-HALF TO G. R.

FERGERSON, OF SAME PLACE.

ADDING-MACHINE.

SPECIFICATION forming part of Letters Patent No. 545,089, dated August 27, 1895.

Application filed hlovember 7, 1894- Serial N- 528,123- (No model.)

To all whom it may concern: Be it known that I, JAMES L. MOELYEA, a

citizen of the United States, residing at Nona,

in the county of Hardin and State of Texas, have invented certain new and useful Improvements in Adding and -Calculating Machines; and I do hereby declare the following to beafull, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to improvements in adding and calculating machines, having for its object to add fixed amounts of money received or to calculate the number of days a laborer has worked or the number of fractions of days, the same consisting of a casing in which are mounted keys provided with mechanism for rotating a ratchet wheel or disk a distance corresponding with the number on the keys or push-buttonsthat is to say, for a key marked 1 one notch of the disk will be moved, for a key marked 2 two notches will be moved, and so on for every key arranged in the machine. Secured to the shaft upon which this ratchet wheel or disk is mounted is arate-indicator, consisting of adisk divided off into radial sections, and also divided by lines running parallel to the circumference of said disk, dividing the same up into sections, which indicate money advanced on pay-roll, addition column, total amount ata fixed rate, and the number of days worked by any workman.

It also consists of other details of construction and combination of parts, which will be more fully hereinafter described and claimed.

In the-drawings forming a part of thisspecification the device is clearly illustrated, and therein Figure 1 represents a front elevation of the machine with the front face thereof removed. Fig. 2 representsa rear elevation of the same with the rear face removed. Fig. 3 is a front elevation of the same, a part being broken away and the keys being shown in section. Fig. 4 is a vertical section taken through the same on the line at 4. of Fig. 1. Fig. 5 is a detail View of the indicating-dial, showing the graduations thereon.

The same numerals indicate the same or like parts in the various views.

1 represents the casing, within which are mounted a series of key-levers 2, which are numbered successively from 1 up to 8. These are mounted in the front face of the casing, as at 2, and extend rearwardly therein, moving through guides 3 and connected at their rear portions with a series of operating-rods 4. In the central rear portion of the same is mounted a bar 5, which is adapted to reciprocate laterally of the casing, and has upon its rear face a series of pins or projections 5", which are engaged, respectively, by the rods 1, to which the key-levers are attached. These rods are provided with slots 6, having a horizontal upper portion and an angular portion extending downward therefrom. It will be seen that the downward movement of any one of the key-levers will actuate the rod 4 to which it is attached, and by means of the angular cam-slot 6 in said rod will reciprocate the bar 5 laterally of the machine. The cam-slots in said rod are so arranged that their horizontal inclination at the bottom is regulated according to the number on the keylever-that is, the slots extend at different angles, so that the slot in the rod connected to the key marked 1 is adapted to move the bar 5 a certain distance and the slot in the rod connected with the key marked 2 is adapted to move the bar twice the distance, and so on. These rods extend through slots 7 in the upper portion 1 of the casing and are engaged by spring 8, adapted to hold the said levers normally in their downward position.

Mounted in suitable braces or supports 9 running laterally through the casing is a horizontally-disposed shaft 10, having secured at its rear end the ratchet-wheel 11, provided with peripheral notches therein. Also attached to said shaft is a coiled spring 12, which tends to keep the same and the disk under tension as the said disk is rotated and to return the said disk back to its starting point when released at the proper moment.

The bar 5 has secured to it the spring-actuated operating-pawl13, which isadapted to engage the notches in the said ratchet-wheel 11. It will be seen that by the lateral movementof the said bar the said ratchet-wheel 11 and the shaft are caused to rotate.

This ratchet-wheel is held from backward movement by means of a spring-actuated 5 detent-pawl 14, secured to a support in the casing 1.

Keyed to the front end of the shaft 10 is the rate indicator or disk 15, which is provided with radial graduations corresponding in number to the notches on the ratchetwheel 11. This disk is also divided off by parallel lines, which are also parallel to the circumference of the said disk. The outer section made by these rulings is for the purpose of containing the rates for money advanced on pay-rolls. The column next adjacent thereto is the column for the addition of these amounts. The column next within is for the total amounts at any fixed rates, and the inner column is for the purpose of registering the number of days worked by any given employ. A fixed pointer 16, secured to a lateral brace and projecting in line with an opening 16 in said casing engages with said disk and upon the rotation of the latter indicates by pointing at the successive radial graduation money advanced on the pay-roll, the column for the addition of fractions of days, the total amount to ,be received by an employ at any fixed rate, and the number of full days that the same has worked. (See Fig. 5.) This indicating-disk being secured to the shaft upon which the ratchet-wheel. 11 is mounted is rotated with said ratchetavheel a distance equal to the rotation of said wheel.

Fulcrumed at 17 in a support in the easing is a lever 17, which extends in front of the face of the ratchet-wheel 11 and has two arms at one end thereof which are adapted to engage, upon the upward movement of said lever, the pawls 13 14, whereby the latter are released from engagement with the ratchetwheel 11, and by means of the coiled spring 12 the said ratchet-wheel carrying the indieating-disk is thrown back to its original position or to the position in which the pointer registers at the zero-mark of the indicator. The lever is actuated by means of a push-rod 18, attached to the outer end of said lever and extending upwardly through the top of the casing. The spring 19 is attached to the end of said push-rod and the casing which holds said push-rod firmly in its upper position.

The invention has been sufficiently described, it is thought, to enable its operation to be readily understood. Starting then with the indicator at the zero-point the operation is as follows: Eight keys have been shown, which may indicate eight fractional parts of aday, although it is obvious that we may use a greater number. Key No. 1, being depressed by means of the rods 4, engages pins on the cross-bar 5, when the pawl 13 thereon moves the ratchet-wheel 11 one notch, indicating that a workman has worked oneeighth of a day and that the pay therefor is one-eighth of the total amount which he would receive for a full days work. The indicator is adapted to indicate, by means of the grad nations described, the exact amount any workman would receive for a proportionate part of a days Work at any rate pcr day which the said workman would receive. If, for example, the ate was two dollars for adnys work, the actuation of key No. 1 would show on the indicator that the said workman had worked one-eighth of a day and that the amonntdue him for said work was twentydive cents. Suppose that the rate per day was one dollar and fifty cents, the indicator would show that the amount due him was eighteen and three fourth cents. If key No. l were actuated by means of the mechanism described, the ratchet-wheel 11 would be moved four notches, which would carry the indicating-dial four times as far, and it would show thereon that the workman had worked one-half of a day and was entitled to a sum equal to one-half of the amount that he would receive for a full days work, giving these fractions exactly would be moved five radial notches, showing that he had worked iive-eighths of a day and was entitled to the sum equal to Iiveeighths of the entire amount he was entitled to for a full days work, and so on for any workman at any rate and for any length of time.

It will be seen from the foregoing description, taken in connection with the accompanying drawings, that I have devised a simple, complete, and elfective apparatus for the purpose, which is an improvement on everything that has preceded it with which I am acquainted.

Many modifications might be resorted to without departing from the nature or spirit of the invention or sacrificing any of its advantages, and all such modifications are clearly within the scope of my invention and are intended to be covered by this patent.

Having thus described the invention, what is claimed as new is- 1. In an adding and calculating machine, the combination with a casing, of a laterally reciprocating bar therein carrying pins on its outer face, rods having cam slots therein en gaging said pins, key levers attached to said slotted rods, a ratchet wheel mounted in said casing engaged by a pawl carried by said bar, an indicating dial secured to the shaft upon which said ratchet wheel is mounted, whereby upon the depression of a key the said bar is reciprocated, the said ratchet wheel and indicator are turned and the amount is indicated on the face ofthe dial, substantially as described.

2. In an adding and calculating machine, the combination of a casing having a laterally reciprocating bar therein carrying a series of pins on its rear face, a series of rods having cam slots therein of Varying sizes,

adapted to move said reciprocating bar varying distances,-key levers attached to said slotted rods, a ratchet wheel mounted in said casing engaged by a pawl on said reciprocating bar, and an indicating dial secured to the shaft upon which said ratchet wheel is mounted, whereby upon the depression of one or the other of said key levers the said JAMES L. MCELYEA.

Witnesses:

W. A. MARTIN, O. O. HOWELL. 

